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Nasdaq · USD

CENX

CENTURY ALUMINUM CO

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3947
SEC CIK
0000949157
Parsed reports
269

Last 12 months

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0 purchase rows · 13 sale rows

Disclosed non-derivative P/S rows, by transaction month. Includes amendments and private transactions.
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MonthPurchasesSales
Nov 202501
Dec 202500
Jan 202601
Feb 202603
Mar 202608
Apr 202600
May 202600
Jun 202600
Jul 202600
Aug 202600
Sep 202600
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Purchases/sales include open-market and private transactions. Plan disclosure applies to the filing; individual rows may differ. “Not disclosed” is not “unplanned.”

The cutoff filters transaction history only. Company summaries and owner relationships show the latest available disclosures. Parser corrections can improve historical records.

Transaction dateOwner / reported roleActivity / securityShares / unitsReported priceReported valueDetails
December 31, 2025 Filed Jan 5, 2026 21:45 UTC
Calloway Kenneth LSVP, Human Resources
Tax withholdingCommon Stock 3,723 $39.18 $145,867.14
Disclosure

SEC source: 0001628280-26-000513 · wk-form4_1767649551.xml · nonDerivative · entry 3

Calloway Kenneth L · CIK 0002014963 · SVP, Human Resources

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 37,664

F3 · shares: Shares withheld by the Issuer to satisfy tax obligations in connection with the vesting of RSUs previously granted to the Reporting Person on January 1, 2023.

Read SEC document
December 31, 2025 Filed Jan 5, 2026 21:45 UTC
Calloway Kenneth LSVP, Human Resources
Tax withholdingCommon Stock 5,469 $39.18 $214,275.42
Disclosure

SEC source: 0001628280-26-000513 · wk-form4_1767649551.xml · nonDerivative · entry 2

Calloway Kenneth L · CIK 0002014963 · SVP, Human Resources

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 41,387

F2 · shares: Shares withheld by the Issuer to satisfy tax obligations in connection with the vesting of PSUs granted to the Reporting Person.

Read SEC document
December 31, 2025 Filed Jan 5, 2026 21:45 UTC
Calloway Kenneth LSVP, Human Resources
GrantCommon Stock 18,150 $0.00 $0.00
Disclosure

SEC source: 0001628280-26-000513 · wk-form4_1767649551.xml · nonDerivative · entry 1

Calloway Kenneth L · CIK 0002014963 · SVP, Human Resources

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 46,856

F1 · shares: Represents shares of common stock acquired by the Reporting Person upon the vesting of PSUs granted in connection with the Issuer's 2023-2025 Long-Term Incentive Plan under Rule 16b-3(d).

Read SEC document
November 10, 2025 Filed Nov 13, 2025 22:59 UTC
Glencore AG10% owner
Glencore plc10% owner
ConversionSeries A Convertible Preferred Stock · Derivative 49,485.91 Not disclosed Not disclosed
Disclosure

SEC source: 0001104659-25-111519 · tm2531156-1_4seq1.xml · derivative · entry 3

GLENCORE INTERNATIONAL AG · CIK 0001032383 · 10% owner

Glencore AG · CIK 0001449539 · 10% owner

Glencore plc · CIK 0001521365 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: No plan indicated

Ownership: Indirect · See Footnote

Disclosed balance after: 0

Underlying: Common Stock · 4,948,591 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F2 · derivative.exercise_price: Each share of Series A Convertible Preferred Stock is convertible into 100 shares of Common Stock at the times and under the circumstances described in the Certificate of Designation for the Series A Convertible Preferred Stock. The Series A Convertible Preferred Stock was acquired on July 8, 2008 and has no expiration date.

F2 · price: Each share of Series A Convertible Preferred Stock is convertible into 100 shares of Common Stock at the times and under the circumstances described in the Certificate of Designation for the Series A Convertible Preferred Stock. The Series A Convertible Preferred Stock was acquired on July 8, 2008 and has no expiration date.

F2 · derivative.exercise_date: Each share of Series A Convertible Preferred Stock is convertible into 100 shares of Common Stock at the times and under the circumstances described in the Certificate of Designation for the Series A Convertible Preferred Stock. The Series A Convertible Preferred Stock was acquired on July 8, 2008 and has no expiration date.

F2 · derivative.expiration_date: Each share of Series A Convertible Preferred Stock is convertible into 100 shares of Common Stock at the times and under the circumstances described in the Certificate of Designation for the Series A Convertible Preferred Stock. The Series A Convertible Preferred Stock was acquired on July 8, 2008 and has no expiration date.

F1 · derivative.underlying_shares: Represents shares of Common Stock acquired upon the automatic conversion of 49,485.91 shares of Series A Convertible Preferred Stock upon the consummation of the transaction reported in Line 1 of Table 1.

F3 · ownership.nature: The shares of Common Stock reported in Line 2 of Table I and the shares of Series A Convertible Preferred Stock reported in Table II are held directly by Glencore AG, a direct wholly-owned subsidiary of Glencore International AG, and may be deemed to be indirectly beneficially owned by Glencore International AG. The Common Stock reported on Line 1 of Table I is held directly by Glencore International AG. Glencore International AG is wholly-owned by Glencore plc, which may be deemed an indirect beneficial owner of the securities held by Glencore AG and Glencore International AG.

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November 10, 2025 Filed Nov 13, 2025 22:59 UTC
Glencore AG10% owner
Glencore plc10% owner
ConversionCommon Stock 4,948,591 Not disclosed Not disclosed
Disclosure

SEC source: 0001104659-25-111519 · tm2531156-1_4seq1.xml · nonDerivative · entry 2

GLENCORE INTERNATIONAL AG · CIK 0001032383 · 10% owner

Glencore AG · CIK 0001449539 · 10% owner

Glencore plc · CIK 0001521365 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: No plan indicated

Ownership: Indirect · See Footnote

Disclosed balance after: 17,505,947

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · shares: Represents shares of Common Stock acquired upon the automatic conversion of 49,485.91 shares of Series A Convertible Preferred Stock upon the consummation of the transaction reported in Line 1 of Table 1.

F2 · price: Each share of Series A Convertible Preferred Stock is convertible into 100 shares of Common Stock at the times and under the circumstances described in the Certificate of Designation for the Series A Convertible Preferred Stock. The Series A Convertible Preferred Stock was acquired on July 8, 2008 and has no expiration date.

F3 · ownership.nature: The shares of Common Stock reported in Line 2 of Table I and the shares of Series A Convertible Preferred Stock reported in Table II are held directly by Glencore AG, a direct wholly-owned subsidiary of Glencore International AG, and may be deemed to be indirectly beneficially owned by Glencore International AG. The Common Stock reported on Line 1 of Table I is held directly by Glencore International AG. Glencore International AG is wholly-owned by Glencore plc, which may be deemed an indirect beneficial owner of the securities held by Glencore AG and Glencore International AG.

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November 10, 2025 Filed Nov 13, 2025 22:59 UTC
Glencore AG10% owner
Glencore plc10% owner
SaleCommon Stock 9,000,000 $30.25 $272,250,000.00
Disclosure

SEC source: 0001104659-25-111519 · tm2531156-1_4seq1.xml · nonDerivative · entry 1

GLENCORE INTERNATIONAL AG · CIK 0001032383 · 10% owner

Glencore AG · CIK 0001449539 · 10% owner

Glencore plc · CIK 0001521365 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 18,500,000

Read SEC document
September 30, 2025 Filed Oct 2, 2025 10:00 UTC
Glencore AG10% owner
Glencore plc10% owner
ConversionSeries A Convertible Preferred Stock · Derivative 28.48 Not disclosed Not disclosed
Disclosure

SEC source: 0001104659-25-095789 · tm2527717-1_4seq1.xml · derivative · entry 3

GLENCORE INTERNATIONAL AG · CIK 0001032383 · 10% owner

Glencore AG · CIK 0001449539 · 10% owner

Glencore plc · CIK 0001521365 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: No plan indicated

Ownership: Indirect · See Footnote

Disclosed balance after: 49,485.91

Underlying: Common Stock · 2,848 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F2 · derivative.exercise_price: Each share of Series A Convertible Preferred Stock is convertible into 100 shares of Common Stock at the times and under the circumstances described in the Certificate of Designation for the Series A Convertible Preferred Stock. The Series A Convertible Preferred Stock has no expiration date.

F2 · price: Each share of Series A Convertible Preferred Stock is convertible into 100 shares of Common Stock at the times and under the circumstances described in the Certificate of Designation for the Series A Convertible Preferred Stock. The Series A Convertible Preferred Stock has no expiration date.

F2 · derivative.exercise_date: Each share of Series A Convertible Preferred Stock is convertible into 100 shares of Common Stock at the times and under the circumstances described in the Certificate of Designation for the Series A Convertible Preferred Stock. The Series A Convertible Preferred Stock has no expiration date.

F2 · derivative.expiration_date: Each share of Series A Convertible Preferred Stock is convertible into 100 shares of Common Stock at the times and under the circumstances described in the Certificate of Designation for the Series A Convertible Preferred Stock. The Series A Convertible Preferred Stock has no expiration date.

F3 · ownership.nature: The shares of Common Stock reported in Line 1 of Table I and the shares of Series A Convertible Preferred Stock reported in Table II are held directly by Glencore AG, a direct wholly-owned subsidiary of Glencore International AG, and may be deemed to be indirectly beneficially owned by Glencore International AG. The Common Stock reported on Line 2 of Table I is held directly by Glencore International AG. Glencore International AG is wholly owned by Glencore plc, which may be deemed an indirect beneficial owner of the securities held by Glencore AG and Glencore International AG.

Read SEC document
September 30, 2025 Filed Oct 2, 2025 10:00 UTC
Glencore AG10% owner
Glencore plc10% owner
ConversionCommon Stock 2,848 Not disclosed Not disclosed
Disclosure

SEC source: 0001104659-25-095789 · tm2527717-1_4seq1.xml · nonDerivative · entry 1

GLENCORE INTERNATIONAL AG · CIK 0001032383 · 10% owner

Glencore AG · CIK 0001449539 · 10% owner

Glencore plc · CIK 0001521365 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: No plan indicated

Ownership: Indirect · See Footnote

Disclosed balance after: 12,557,356

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · price: Represents shares of Common Stock acquired upon conversion of 28.48 shares of Series A Convertible Preferred Stock on September 30, 2025.

F2 · price: Each share of Series A Convertible Preferred Stock is convertible into 100 shares of Common Stock at the times and under the circumstances described in the Certificate of Designation for the Series A Convertible Preferred Stock. The Series A Convertible Preferred Stock has no expiration date.

F3 · ownership.nature: The shares of Common Stock reported in Line 1 of Table I and the shares of Series A Convertible Preferred Stock reported in Table II are held directly by Glencore AG, a direct wholly-owned subsidiary of Glencore International AG, and may be deemed to be indirectly beneficially owned by Glencore International AG. The Common Stock reported on Line 2 of Table I is held directly by Glencore International AG. Glencore International AG is wholly owned by Glencore plc, which may be deemed an indirect beneficial owner of the securities held by Glencore AG and Glencore International AG.

Read SEC document
September 26, 2025 Filed Sep 30, 2025 20:26 UTC
Hafberg Agust FSVP & Chief Commercial Officer
SaleCommon Stock 9,493 $27.91 $264,949.63
Disclosure

SEC source: 0001628280-25-043249 · wk-form4_1759263981.xml · nonDerivative · entry 1

Hafberg Agust F · CIK 0002049924 · SVP & Chief Commercial Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 55,260

F1 · balance_after: Includes unvested RSUs granted to the Reporting Person under the Issuer's Long-Term Incentive Plans.

Read SEC document
September 19, 2025 Filed Sep 23, 2025 20:03 UTC
Calloway Kenneth LSVP, Human Resources
SaleCommon Stock 16,450 $27.50 $452,375.00
Disclosure

SEC source: 0001628280-25-042475 · wk-form4_1758657799.xml · nonDerivative · entry 1

Calloway Kenneth L · CIK 0002014963 · SVP, Human Resources

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 28,706

F1 · balance_after: Includes unvested RSUs granted to the Reporting Person under the Issuer's Long-Term Incentive Plans.

Read SEC document
August 12, 2025 Filed Aug 14, 2025 20:36 UTC
Aboud MattSVP, Strategy & Business Dev't
SaleCommon Stock 12,027 $23.27 $279,868.29
Disclosure

SEC source: 0001863408-25-000004 · wk-form4_1755203791.xml · nonDerivative · entry 1

Aboud Matt · CIK 0001863408 · SVP, Strategy & Business Dev't

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 62,589

F1 · balance_after: Includes unvested RSUs granted to the Reporting Person under the Issuer's Long-Term Incentive Plans.

Read SEC document
June 30, 2025 Filed Jul 2, 2025 12:23 UTC
Glencore AG10% owner
Glencore plc10% owner
ConversionSeries A Convertible Preferred Stock · Derivative 164.77 Not disclosed Not disclosed
Disclosure

SEC source: 0001104659-25-065039 · tm2519591-1_4seq1.xml · derivative · entry 3

GLENCORE INTERNATIONAL AG · CIK 0001032383 · 10% owner

Glencore AG · CIK 0001449539 · 10% owner

Glencore plc · CIK 0001521365 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: No plan indicated

Ownership: Indirect · See Footnote

Disclosed balance after: 49,514.39

Underlying: Common Stock · 16,477 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F2 · derivative.exercise_price: Each share of Series A Convertible Preferred Stock is convertible into 100 shares of Common Stock at the times and under the circumstances described in the Certificate of Designation for the Series A Convertible Preferred Stock. The Series A Convertible Preferred Stock has no expiration date.

F2 · price: Each share of Series A Convertible Preferred Stock is convertible into 100 shares of Common Stock at the times and under the circumstances described in the Certificate of Designation for the Series A Convertible Preferred Stock. The Series A Convertible Preferred Stock has no expiration date.

F2 · derivative.exercise_date: Each share of Series A Convertible Preferred Stock is convertible into 100 shares of Common Stock at the times and under the circumstances described in the Certificate of Designation for the Series A Convertible Preferred Stock. The Series A Convertible Preferred Stock has no expiration date.

F2 · derivative.expiration_date: Each share of Series A Convertible Preferred Stock is convertible into 100 shares of Common Stock at the times and under the circumstances described in the Certificate of Designation for the Series A Convertible Preferred Stock. The Series A Convertible Preferred Stock has no expiration date.

F3 · ownership.nature: The shares of Common Stock reported in Line 1 of Table I and the shares of Series A Convertible Preferred Stock reported in Table II are held directly by Glencore AG, a direct wholly-owned subsidiary of Glencore International AG, and may be deemed to be indirectly beneficially owned by Glencore International AG. The Common Stock reported on Line 2 of Table I is held directly by Glencore International AG. Glencore International AG is wholly owned by Glencore plc, which may be deemed an indirect beneficial owner of the securities held by Glencore AG and Glencore International AG.

Read SEC document
June 30, 2025 Filed Jul 2, 2025 12:23 UTC
Glencore AG10% owner
Glencore plc10% owner
ConversionCommon Stock 16,477 Not disclosed Not disclosed
Disclosure

SEC source: 0001104659-25-065039 · tm2519591-1_4seq1.xml · nonDerivative · entry 1

GLENCORE INTERNATIONAL AG · CIK 0001032383 · 10% owner

Glencore AG · CIK 0001449539 · 10% owner

Glencore plc · CIK 0001521365 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: No plan indicated

Ownership: Indirect · See Footnote

Disclosed balance after: 12,554,508

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · price: Represents shares of Common Stock acquired upon conversion of 164.77 shares of Series A Convertible Preferred Stock on June 30, 2025.

F2 · price: Each share of Series A Convertible Preferred Stock is convertible into 100 shares of Common Stock at the times and under the circumstances described in the Certificate of Designation for the Series A Convertible Preferred Stock. The Series A Convertible Preferred Stock has no expiration date.

F3 · ownership.nature: The shares of Common Stock reported in Line 1 of Table I and the shares of Series A Convertible Preferred Stock reported in Table II are held directly by Glencore AG, a direct wholly-owned subsidiary of Glencore International AG, and may be deemed to be indirectly beneficially owned by Glencore International AG. The Common Stock reported on Line 2 of Table I is held directly by Glencore International AG. Glencore International AG is wholly owned by Glencore plc, which may be deemed an indirect beneficial owner of the securities held by Glencore AG and Glencore International AG.

Read SEC document
June 16, 2025 Filed Jun 18, 2025 22:22 UTC GrantCommon Stock 7,778 $0.00 $0.00
Disclosure

SEC source: 0000949157-25-000041 · wk-form4_1750285327.xml · nonDerivative · entry 1

Bush Jennifer Mary · CIK 0001897517 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 46,872

F1 · shares: Represents annual grant of restricted stock units ("RSUs"), all of which vest in full on the earlier of (i) the 12-month anniversary of the grant date, (ii) the date of the Issuer's next regular annual meeting of stockholders, or (iii) the occurrence of certain other events in accordance with the terms of the award.

F2 · balance_after: Includes shares of common stock issuable pursuant to vested RSUs, the settlement of which have been deferred pursuant to an annual deferral election previously made by the Reporting Person.

Read SEC document
June 16, 2025 Filed Jun 18, 2025 22:28 UTC GrantCommon Stock 7,778 $0.00 $0.00
Disclosure

SEC source: 0000949157-25-000045 · wk-form4_1750285696.xml · nonDerivative · entry 1

Olivier Tamla A · CIK 0001980269 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 29,673

F1 · shares: Represents annual grant of restricted stock units ("RSUs"), all of which vest in full on the earlier of (i) the 12-month anniversary of the grant date, (ii) the date of the Issuer's next regular annual meeting of stockholders, or (iii) the occurrence of certain other events in accordance with the terms of the award.

Read SEC document
June 16, 2025 Filed Jun 18, 2025 22:31 UTC GrantCommon Stock 7,778 $0.00 $0.00
Disclosure

SEC source: 0000949157-25-000047 · wk-form4_1750285885.xml · nonDerivative · entry 1

GLASSER ERROL · CIK 0001203889 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 118,697

F1 · shares: Represents annual grant of restricted stock units ("RSUs"), all of which vested on the date of grant.

F2 · balance_after: Includes shares of common stock issuable pursuant to vested RSUs, the settlement of which have been deferred pursuant to an annual deferral election previously made by the Reporting Person.

Read SEC document
June 16, 2025 Filed Jun 18, 2025 22:09 UTC GrantCommon Stock 7,778 $0.00 $0.00
Disclosure

SEC source: 0000949157-25-000039 · wk-form4_1750284574.xml · nonDerivative · entry 1

Berntzen Jarl · CIK 0001355035 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 208,951

F1 · shares: Represents annual grant of restricted stock units ("RSUs"), all of which vest in full on the earlier of (i) the 12-month anniversary of the grant date, (ii) the date of the Issuer's next regular annual meeting of stockholders, or (iii) the occurrence of certain other events in accordance with the terms of the award.

F2 · balance_after: Includes shares of common stock issuable pursuant to vested RSUs, the settlement of which have been deferred pursuant to an annual deferral election previously made by the Reporting Person.

Read SEC document
June 16, 2025 Filed Jun 18, 2025 22:25 UTC Tax withholdingCommon Stock 2,333 $17.36 $40,500.88
Disclosure

SEC source: 0000949157-25-000043 · wk-form4_1750285527.xml · nonDerivative · entry 2

Michelmore Andrew G · CIK 0001493775 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 89,089

F2 · shares: Represents shares withheld by the Issuer upon vesting of the RSUs to satisfy tax obligations.

Read SEC document
June 16, 2025 Filed Jun 18, 2025 22:25 UTC GrantCommon Stock 7,778 $0.00 $0.00
Disclosure

SEC source: 0000949157-25-000043 · wk-form4_1750285527.xml · nonDerivative · entry 1

Michelmore Andrew G · CIK 0001493775 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 91,422

F1 · shares: Represents annual grant of restricted stock units ("RSUs"), all of which vested on the date of grant.

Read SEC document
March 31, 2025 Filed Apr 1, 2025 11:57 UTC
Glencore AG10% owner
Glencore plc10% owner
ConversionSeries A Convertible Preferred Stock · Derivative 35.93 Not disclosed Not disclosed
Disclosure

SEC source: 0001104659-25-030252 · tm2510907-1_4seq1.xml · derivative · entry 3

GLENCORE INTERNATIONAL AG · CIK 0001032383 · 10% owner

Glencore AG · CIK 0001449539 · 10% owner

Glencore plc · CIK 0001521365 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: No plan indicated

Ownership: Indirect · See Footnote

Disclosed balance after: 49,679.16

Underlying: Common Stock · 3,593 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F2 · derivative.exercise_price: Each share of Series A Convertible Preferred Stock is convertible into 100 shares of Common Stock at the times and under the circumstances described in the Certificate of Designation for the Series A Convertible Preferred Stock. The Series A Convertible Preferred Stock has no expiration date.

F2 · price: Each share of Series A Convertible Preferred Stock is convertible into 100 shares of Common Stock at the times and under the circumstances described in the Certificate of Designation for the Series A Convertible Preferred Stock. The Series A Convertible Preferred Stock has no expiration date.

F2 · derivative.exercise_date: Each share of Series A Convertible Preferred Stock is convertible into 100 shares of Common Stock at the times and under the circumstances described in the Certificate of Designation for the Series A Convertible Preferred Stock. The Series A Convertible Preferred Stock has no expiration date.

F2 · derivative.expiration_date: Each share of Series A Convertible Preferred Stock is convertible into 100 shares of Common Stock at the times and under the circumstances described in the Certificate of Designation for the Series A Convertible Preferred Stock. The Series A Convertible Preferred Stock has no expiration date.

F3 · ownership.nature: The shares of Common Stock reported in Line 1 of Table I and the shares of Series A Convertible Preferred Stock reported in Table II are held directly by Glencore AG, a direct wholly-owned subsidiary of Glencore International AG, and may be deemed to be indirectly beneficially owned by Glencore International AG. The Common Stock reported on Line 2 of Table I is held directly by Glencore International AG. Glencore International AG is wholly owned by Glencore plc, which may be deemed an indirect beneficial owner of the securities held by Glencore AG and Glencore International AG.

Read SEC document
March 31, 2025 Filed Apr 1, 2025 11:57 UTC
Glencore AG10% owner
Glencore plc10% owner
ConversionCommon Stock 3,593 Not disclosed Not disclosed
Disclosure

SEC source: 0001104659-25-030252 · tm2510907-1_4seq1.xml · nonDerivative · entry 1

GLENCORE INTERNATIONAL AG · CIK 0001032383 · 10% owner

Glencore AG · CIK 0001449539 · 10% owner

Glencore plc · CIK 0001521365 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: No plan indicated

Ownership: Indirect · See Footnote

Disclosed balance after: 12,538,031

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · price: Represents shares of Common Stock acquired upon conversion of 35.93 shares of Series A Convertible Preferred Stock on March 31, 2025.

F2 · price: Each share of Series A Convertible Preferred Stock is convertible into 100 shares of Common Stock at the times and under the circumstances described in the Certificate of Designation for the Series A Convertible Preferred Stock. The Series A Convertible Preferred Stock has no expiration date.

F3 · ownership.nature: The shares of Common Stock reported in Line 1 of Table I and the shares of Series A Convertible Preferred Stock reported in Table II are held directly by Glencore AG, a direct wholly-owned subsidiary of Glencore International AG, and may be deemed to be indirectly beneficially owned by Glencore International AG. The Common Stock reported on Line 2 of Table I is held directly by Glencore International AG. Glencore International AG is wholly owned by Glencore plc, which may be deemed an indirect beneficial owner of the securities held by Glencore AG and Glencore International AG.

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March 21, 2025 Filed Mar 25, 2025 22:48 UTC
Trpkovski Peter AEVP, CFO and Treasurer
GrantCommon Stock 12,455 $0.00 $0.00
Disclosure

SEC source: 0000949157-25-000032 · wk-form4_1742942912.xml · nonDerivative · entry 1

Trpkovski Peter A · CIK 0001980271 · EVP, CFO and Treasurer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 65,491

F1 · shares: Represents TVSUs granted to the Reporting Person in connection with his promotion to the role of EVP, CFO and Treasurer, all of which will vest on December 31, 2027, subject to the grant's terms and conditions.

F2 · balance_after: Includes unvested TVSUs granted to the Reporting Person under the Issuer's Long-Term Incentive Plans.

Read SEC document
March 20, 2025 Filed Mar 24, 2025 21:29 UTC
Hoffman Robert FSVP, IT and CAO
SaleCommon Stock 5,000 $20.24 $101,200.00
Disclosure

SEC source: 0000949157-25-000030 · wk-form4_1742851746.xml · nonDerivative · entry 1

Hoffman Robert F · CIK 0001603836 · SVP, IT and CAO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 59,083

F1 · balance_after: Includes unvested TVSUs granted to the Reporting Person under the Issuer's Long-Term Incentive Plans.

Read SEC document
March 14, 2025 Filed Mar 18, 2025 22:10 UTC
Hoffman Robert FSVP, IT and CAO
SaleCommon Stock 2,500 $19.99 $49,975.00
Disclosure

SEC source: 0000949157-25-000028 · wk-form4_1742335816.xml · nonDerivative · entry 1

Hoffman Robert F · CIK 0001603836 · SVP, IT and CAO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 64,083

F1 · balance_after: Includes unvested TVSUs granted to the Reporting Person under the Issuer's Long-Term Incentive Plans.

Read SEC document
February 07, 2025 Filed Feb 10, 2025 22:35 UTC
Trpkovski Peter ASVP, Finance and Treasurer
Tax withholdingCommon Stock 4,501 $18.69 $84,123.69
Disclosure

SEC source: 0000949157-25-000022 · wk-form4_1739226932.xml · nonDerivative · entry 1

Trpkovski Peter A · CIK 0001980271 · SVP, Finance and Treasurer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 53,036

F1 · shares: Shares withheld by the Issuer to satisfy tax obligations in connection with the vesting of TVSUs previously granted to the Reporting Person on February 9, 2023.

F2 · balance_after: Includes unvested TVSUs granted to the Reporting Person under the Issuer's Long-Term Incentive Plans.

Read SEC document
January 28, 2025 Filed Jan 29, 2025 22:23 UTC
Gary Jesse EDirector · President and CEO
GiftCommon Stock 127,216 $0.00 $0.00
Disclosure

SEC source: 0000949157-25-000020 · wk-form4_1738189378.xml · nonDerivative · entry 2

Gary Jesse E · CIK 0001568817 · Director · President and CEO

10b5-1 filing: No plan indicated

Ownership: Indirect · By Trust

Disclosed balance after: 127,969

F1 · shares: Represents shares transferred by the Reporting Person to a self-settled, revocable trust for estate planning purposes for which the Reporting Person serves as trustee.

F3 · balance_after: Shares held in a self-settled, revocable trust for which the Reporting Person serves as trustee.

Read SEC document
January 28, 2025 Filed Jan 29, 2025 22:23 UTC
Gary Jesse EDirector · President and CEO
GiftCommon Stock 127,216 $0.00 $0.00
Disclosure

SEC source: 0000949157-25-000020 · wk-form4_1738189378.xml · nonDerivative · entry 1

Gary Jesse E · CIK 0001568817 · Director · President and CEO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 366,147

F1 · shares: Represents shares transferred by the Reporting Person to a self-settled, revocable trust for estate planning purposes for which the Reporting Person serves as trustee.

F2 · balance_after: Includes unvested TVSUs granted to the Reporting Person under the Issuer's Long-Term Incentive Plans.

Read SEC document
January 01, 2025 Filed Jan 3, 2025 22:43 UTC
Hoffman Robert FSVP, IT and CAO
GrantCommon Stock 8,257 $0.00 $0.00
Disclosure

SEC source: 0000949157-25-000018 · wk-form4_1735944230.xml · nonDerivative · entry 4

Hoffman Robert F · CIK 0001603836 · SVP, IT and CAO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 66,583

F4 · shares: Represents TVSUs granted to the Reporting Person in connection with the Issuer's 2025-2027 Long-Term Incentive Plan under Rule 16b-3(d), all of which will vest on December 31, 2027, subject to the Plan's terms and conditions.

F5 · balance_after: Includes unvested TVSUs granted to the Reporting Person under the Issuer's Long-Term Incentive Plans.

Read SEC document
January 01, 2025 Filed Jan 3, 2025 22:40 UTC
Gary Jesse EDirector · President and CEO
GrantCommon Stock 84,038 $0.00 $0.00
Disclosure

SEC source: 0000949157-25-000016 · wk-form4_1735943991.xml · nonDerivative · entry 4

Gary Jesse E · CIK 0001568817 · Director · President and CEO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 493,363

F4 · shares: Represents TVSUs granted to the Reporting Person in connection with the Issuer's 2025-2027 Long-Term Incentive Plan under Rule 16b-3(d), all of which will vest on December 31, 2027, subject to the Plan's terms and conditions.

F5 · balance_after: Includes unvested TVSUs granted to the Reporting Person under the Issuer's Long-Term Incentive Plans.

Read SEC document
January 01, 2025 Filed Jan 3, 2025 22:35 UTC
Gudlaugsson GunnarEVP - Global Operations
GrantCommon Stock 24,582 $0.00 $0.00
Disclosure

SEC source: 0000949157-25-000014 · wk-form4_1735943745.xml · nonDerivative · entry 4

Gudlaugsson Gunnar · CIK 0001846594 · EVP - Global Operations

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 143,804

F4 · shares: Represents TVSUs granted to the Reporting Person in connection with the Issuer's 2025-2027 Long-Term Incentive Plan under Rule 16b-3(d), all of which will vest on December 31, 2027, subject to the Plan's terms and conditions.

F5 · balance_after: Includes unvested TVSUs granted to the Reporting Person under the Issuer's Long-Term Incentive Plans.

Read SEC document
January 01, 2025 Filed Jan 3, 2025 22:31 UTC
Hafberg Agust FSVP & Chief Commercial Officer
GrantCommon Stock 7,787 $0.00 $0.00
Disclosure

SEC source: 0000949157-25-000012 · wk-form4_1735943461.xml · nonDerivative · entry 4

Hafberg Agust F · CIK 0002049924 · SVP & Chief Commercial Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 64,753

F4 · shares: Represents TVSUs granted to the Reporting Person in connection with the Issuer's 2025-2027 Long-Term Incentive Plan under Rule 16b-3(d), all of which will vest on December 31, 2027, subject to the Plan's terms and conditions.

F5 · balance_after: Includes unvested TVSUs granted to the Reporting Person under the Issuer's Long-Term Incentive Plans.

Read SEC document
January 01, 2025 Filed Jan 3, 2025 22:27 UTC
DeZee JohnEVP, GC and Secretary
GrantCommon Stock 15,244 $0.00 $0.00
Disclosure

SEC source: 0000949157-25-000010 · wk-form4_1735943254.xml · nonDerivative · entry 4

DeZee John · CIK 0001863198 · EVP, GC and Secretary

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 132,918

F4 · shares: Represents TVSUs granted to the Reporting Person in connection with the Issuer's 2025-2027 Long-Term Incentive Plan under Rule 16b-3(d), all of which will vest on December 31, 2027, subject to the Plan's terms and conditions.

F5 · balance_after: Includes unvested TVSUs granted to the Reporting Person under the Issuer's Long-Term Incentive Plans.

Read SEC document
January 01, 2025 Filed Jan 3, 2025 22:25 UTC
Calloway Kenneth LSVP, Human Resources
GrantCommon Stock 7,787 $0.00 $0.00
Disclosure

SEC source: 0000949157-25-000008 · wk-form4_1735943092.xml · nonDerivative · entry 4

Calloway Kenneth L · CIK 0002014963 · SVP, Human Resources

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 45,156

F4 · shares: Represents TVSUs granted to the Reporting Person in connection with the Issuer's 2025-2027 Long-Term Incentive Plan under Rule 16b-3(d), all of which will vest on December 31, 2027, subject to the Plan's terms and conditions.

F5 · balance_after: Includes unvested TVSUs granted to the Reporting Person under the Issuer's Long-Term Incentive Plans.

Read SEC document
January 01, 2025 Filed Jan 3, 2025 22:22 UTC
Aboud MattSVP, Strategy & Business Dev't
GrantCommon Stock 8,935 $0.00 $0.00
Disclosure

SEC source: 0000949157-25-000006 · wk-form4_1735942923.xml · nonDerivative · entry 4

Aboud Matt · CIK 0001863408 · SVP, Strategy & Business Dev't

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 74,616

F4 · shares: Represents TVSUs granted to the Reporting Person in connection with the Issuer's 2025-2027 Long-Term Incentive Plan under Rule 16b-3(d), all of which will vest on December 31, 2027, subject to the Plan's terms and conditions.

F5 · balance_after: Includes unvested TVSUs granted to the Reporting Person under the Issuer's Long-Term Incentive Plans.

Read SEC document
January 01, 2025 Filed Jan 3, 2025 22:17 UTC
Trpkovski Peter ASVP, Finance and Treasurer
GrantCommon Stock 6,046 $0.00 $0.00
Disclosure

SEC source: 0000949157-25-000004 · wk-form4_1735942664.xml · nonDerivative · entry 4

Trpkovski Peter A · CIK 0001980271 · SVP, Finance and Treasurer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 57,537

F4 · shares: Represents TVSUs granted to the Reporting Person in connection with the Issuer's 2025-2027 Long-Term Incentive Plan under Rule 16b-3(d), all of which will vest on December 31, 2027, subject to the Plan's terms and conditions.

F5 · balance_after: Includes unvested TVSUs granted to the Reporting Person under the Issuer's Long-Term Incentive Plans.

Read SEC document
January 01, 2025 Filed Jan 3, 2025 22:11 UTC
Bialek Gerald CChief Financial Officer
GrantCommon Stock 17,534 $0.00 $0.00
Disclosure

SEC source: 0000949157-25-000002 · wk-form4_1735942299.xml · nonDerivative · entry 1

Bialek Gerald C · CIK 0001820256 · Chief Financial Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 100,620

F1 · shares: Represents TVSUs granted to the Reporting Person in connection with the Issuer's 2025-2027 Long-Term Incentive Plan under Rule 16b-3(d), all of which will vest on December 31, 2027, subject to the Plan's terms and conditions.

F2 · balance_after: Includes unvested TVSUs granted to the Reporting Person under the Issuer's Long-Term Incentive Plans.

Read SEC document
December 31, 2024 Filed Jan 3, 2025 22:43 UTC
Hoffman Robert FSVP, IT and CAO
Tax withholdingCommon Stock 1,852 $18.22 $33,743.44
Disclosure

SEC source: 0000949157-25-000018 · wk-form4_1735944230.xml · nonDerivative · entry 3

Hoffman Robert F · CIK 0001603836 · SVP, IT and CAO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 58,326

F3 · shares: Shares withheld by the Issuer to satisfy tax obligations in connection with the vesting of TVSUs previously granted to the Reporting Person on January 1, 2022.

Read SEC document
December 31, 2024 Filed Jan 3, 2025 22:43 UTC
Hoffman Robert FSVP, IT and CAO
Tax withholdingCommon Stock 5,401 $18.22 $98,406.22
Disclosure

SEC source: 0000949157-25-000018 · wk-form4_1735944230.xml · nonDerivative · entry 2

Hoffman Robert F · CIK 0001603836 · SVP, IT and CAO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 60,178

F2 · shares: Shares withheld by the Issuer to satisfy tax obligations in connection with the vesting of PSUs granted to the Reporting Person.

Read SEC document
December 31, 2024 Filed Jan 3, 2025 22:43 UTC
Hoffman Robert FSVP, IT and CAO
GrantCommon Stock 13,723 $0.00 $0.00
Disclosure

SEC source: 0000949157-25-000018 · wk-form4_1735944230.xml · nonDerivative · entry 1

Hoffman Robert F · CIK 0001603836 · SVP, IT and CAO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 65,579

F1 · shares: Represents shares of common stock acquired by the Reporting Person upon the vesting of PSUs granted in connection with the Issuer's 2022-2024 Long-Term Incentive Plan under Rule 16b-3(d).

Read SEC document
December 31, 2024 Filed Jan 3, 2025 22:40 UTC
Gary Jesse EDirector · President and CEO
Tax withholdingCommon Stock 18,849 $18.22 $343,428.78
Disclosure

SEC source: 0000949157-25-000016 · wk-form4_1735943991.xml · nonDerivative · entry 3

Gary Jesse E · CIK 0001568817 · Director · President and CEO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 409,325

F3 · shares: Shares withheld by the Issuer to satisfy tax obligations in connection with the vesting of TVSUs previously granted to the Reporting Person on January 1, 2022.

Read SEC document
December 31, 2024 Filed Jan 3, 2025 22:40 UTC
Gary Jesse EDirector · President and CEO
Tax withholdingCommon Stock 82,331 $18.22 $1,500,070.82
Disclosure

SEC source: 0000949157-25-000016 · wk-form4_1735943991.xml · nonDerivative · entry 2

Gary Jesse E · CIK 0001568817 · Director · President and CEO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 428,174

F2 · shares: Shares withheld by the Issuer to satisfy tax obligations in connection with the vesting of PSUs granted to the Reporting Person.

Read SEC document
December 31, 2024 Filed Jan 3, 2025 22:40 UTC
Gary Jesse EDirector · President and CEO
GrantCommon Stock 185,848 $0.00 $0.00
Disclosure

SEC source: 0000949157-25-000016 · wk-form4_1735943991.xml · nonDerivative · entry 1

Gary Jesse E · CIK 0001568817 · Director · President and CEO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 510,505

F1 · shares: Represents shares of common stock acquired by the Reporting Person upon the vesting of PSUs granted in connection with the Issuer's 2022-2024 Long-Term Incentive Plan under Rule 16b-3(d).

Read SEC document
December 31, 2024 Filed Jan 3, 2025 22:35 UTC
Gudlaugsson GunnarEVP - Global Operations
Tax withholdingCommon Stock 6,105 $18.22 $111,233.10
Disclosure

SEC source: 0000949157-25-000014 · wk-form4_1735943745.xml · nonDerivative · entry 3

Gudlaugsson Gunnar · CIK 0001846594 · EVP - Global Operations

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 119,222

F3 · shares: Shares withheld by the Issuer to satisfy tax obligations in connection with the vesting of TVSUs previously granted to the Reporting Person on January 1, 2022.

Read SEC document
December 31, 2024 Filed Jan 3, 2025 22:35 UTC
Gudlaugsson GunnarEVP - Global Operations
Tax withholdingCommon Stock 17,804 $18.22 $324,388.88
Disclosure

SEC source: 0000949157-25-000014 · wk-form4_1735943745.xml · nonDerivative · entry 2

Gudlaugsson Gunnar · CIK 0001846594 · EVP - Global Operations

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 125,327

F2 · shares: Shares withheld by the Issuer to satisfy tax obligations in connection with the vesting of PSUs granted to the Reporting Person.

Read SEC document
December 31, 2024 Filed Jan 3, 2025 22:35 UTC
Gudlaugsson GunnarEVP - Global Operations
GrantCommon Stock 35,199 $0.00 $0.00
Disclosure

SEC source: 0000949157-25-000014 · wk-form4_1735943745.xml · nonDerivative · entry 1

Gudlaugsson Gunnar · CIK 0001846594 · EVP - Global Operations

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 143,131

F1 · shares: Represents shares of common stock acquired by the Reporting Person upon the vesting of PSUs granted in connection with the Issuer's 2022-2024 Long-Term Incentive Plan under Rule 16b-3(d).

Read SEC document
December 31, 2024 Filed Jan 3, 2025 22:31 UTC
Hafberg Agust FSVP & Chief Commercial Officer
Tax withholdingCommon Stock 2,481 $18.22 $45,203.82
Disclosure

SEC source: 0000949157-25-000012 · wk-form4_1735943461.xml · nonDerivative · entry 3

Hafberg Agust F · CIK 0002049924 · SVP & Chief Commercial Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 56,966

F3 · shares: Shares withheld by the Issuer to satisfy tax obligations in connection with the vesting of TVSUs previously granted to the Reporting Person on January 1, 2022.

Read SEC document
December 31, 2024 Filed Jan 3, 2025 22:31 UTC
Hafberg Agust FSVP & Chief Commercial Officer
Tax withholdingCommon Stock 7,235 $18.22 $131,821.70
Disclosure

SEC source: 0000949157-25-000012 · wk-form4_1735943461.xml · nonDerivative · entry 2

Hafberg Agust F · CIK 0002049924 · SVP & Chief Commercial Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 59,447

F2 · shares: Shares withheld by the Issuer to satisfy tax obligations in connection with the vesting of PSUs granted to the Reporting Person.

Read SEC document
December 31, 2024 Filed Jan 3, 2025 22:31 UTC
Hafberg Agust FSVP & Chief Commercial Officer
GrantCommon Stock 14,304 $0.00 $0.00
Disclosure

SEC source: 0000949157-25-000012 · wk-form4_1735943461.xml · nonDerivative · entry 1

Hafberg Agust F · CIK 0002049924 · SVP & Chief Commercial Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 66,682

F1 · shares: Represents shares of common stock acquired by the Reporting Person upon the vesting of PSUs granted in connection with the Issuer's 2022-2024 Long-Term Incentive Plan under Rule 16b-3(d).

Read SEC document
December 31, 2024 Filed Jan 3, 2025 22:27 UTC
DeZee JohnEVP, GC and Secretary
Tax withholdingCommon Stock 2,616 $18.22 $47,663.52
Disclosure

SEC source: 0000949157-25-000010 · wk-form4_1735943254.xml · nonDerivative · entry 3

DeZee John · CIK 0001863198 · EVP, GC and Secretary

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 117,674

F3 · shares: Shares withheld by the Issuer to satisfy tax obligations in connection with the vesting of TVSUs previously granted to the Reporting Person on January 1, 2022.

Read SEC document
December 31, 2024 Filed Jan 3, 2025 22:27 UTC
DeZee JohnEVP, GC and Secretary
Tax withholdingCommon Stock 7,629 $18.22 $139,000.38
Disclosure

SEC source: 0000949157-25-000010 · wk-form4_1735943254.xml · nonDerivative · entry 2

DeZee John · CIK 0001863198 · EVP, GC and Secretary

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 120,290

F2 · shares: Shares withheld by the Issuer to satisfy tax obligations in connection with the vesting of PSUs granted to the Reporting Person.

Read SEC document

Value uses the disclosed total when available, otherwise shares × reported transaction price. It is not an estimate of exercise cash cost or investment performance.